I was thinking it wasn't so bad set of 10 and 9, set of 7 my lower back was starting to get tight, by the time I got to the set of 5 my back was just a knot.
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."